Arrangement for removing secretions from dental canals by suction



R. FUST March 8, 1927.

Filed Aug. 3d. 1923 4 Sheets-Sheet 1 Fig].

R. FUST March 8, 1927.

ARRANGEMENT FOR REMOVING SECRETIONS FROM DENTAL CANALS BY SUCTIONFiled-Aug: 30. 1923 4 Sheets-Sheet 2 In 12mm- March 8, 1927. 1,620,599

R. FUST v ARRANGEMENT FOR REMOVING SECRETIONS FR OM DENTAL CANALS BYSUCTION Filed Aug. 30. 1923 4 Shets-Sheet s v Fig.4. 7 Fig.

' .lnlrentom March 8 1927.

R. FUST ARRANGEMENT FOR REMOVING SECRETIONS FROM DENTAL CANAL5 BYSUCTION Filed .Aug. 30, 1923 4 Sheets-Sheet 4 Patented Mar. 8, 1927. i anrrsn STATES PATENT OFFICE.

ROBERT FUST, F GLOGA'U, GERMANY.

ARRANGEMENT FOR REMOVING SECRETIONS FROM DENTAL CANALS IBY SUCTION.

Application filed August 30, 1923, Serial No. 660,214, and in GermanyJanuary 31, 1923.

This invention relates to dental appliof still another modification,especially of ances, and more particularly to an arrangethe suctionplate. ment for sucking off secretions which may Referring to Fig. 1,the upper jaw is have collected in dental canals. The main denoted bythe figure 1, 2 is the ulceration 5 object of the invention is toprovide imto be cleared, 3 the root of the tooth with proved means whichwill enable the dentist its dental canal 1 extending right into the toeffectively maintain a vacuum within the crown. 4 is adrill hole made bythe dentist socket of the tooth, or the ulceration therepreparatory toremoving the secretions, and behind, for as long as possible a durationextending from the outer enamel into the 10 without the application ofhurtful pressure tooth socket. The appliance used to remove upon theafiected tooth. the secretions consists of a clip 6 having re- Anotherobject of the invention is to pro Silient legs 5 arranged to pivot on apin 7 vide a device which, once applied, may be and adapted to beclamped to the tooth as left without attendance, so that the dentistshown in the figure. The said clip is en- 15 may have both his handsfree for other closed by a piece of India rubber tube 8, work. whichmakes an airtight joint upon the A further object of the invention isthe tooth above the drill hole 4. To the said provision of a device ofthe said kind which rubber tube 8 is attached another tube, prefwill notmolest the patient and which, beel'ably made of glass, whilst a spiralspring 2o sides, will not be disarranged by slight move- 9 is insertedinto the rubber tubing above ments of the patients head. the glass tubeto impart to the former a WVith these and other objects in view thegreater resistance to the pressure of the invention broadly consists ina suction arouter air during the suction operation. rangement of whichthe nozzle or suction With its lower end the glass tube 10 is 2 pieceproper, hereinafter called the mouth passed through a stopper 11 into aglass piece, is held to the tooth by means of a vessel 12. Another glasstube 13 adjacent clamp or clip; means being provided to so to the glasstube 10 is passed through the securely hold the said mouthpiece inairtight same stopper 11 and, with its outer end, is in connection withthe tooth as to prevent its connection with an india-rubber bulb 15 by30 becoming deranged by slight movements of means of a length of rubbertubing 14 with the patients head. inserted spiral spring as in the caseof the The invention is illustrated in the actube 8 just referred to.Bulb 15 also is companying drawings illustrating several provided with acoil spring 8 to render it modifications by way of example. moreresistable to the pressure of the outer 9O 35 Fig. 1 shows the generalarrangement air. A pressure imparted to the said bulb of the appliancein part sectional side elewill first of all force air from within thevation, the mouthpiece in this example bebulb through the valve 16 tothe outside, ing in the shape 01": a spring clip. so that after therelease of the bulb and Figs. 2 and 3 are front and side elevation,consequent closing of the valve a partial 4 the latter partly insection, of an arrangevacuum will be formed, which produces a ment inwhich the mouthpiece is held to the sucking effect and causes matterfrom the tooth by means of a yoke or stirrup. ulceration 2 to passthrough the dental canal Figs.l-and5 are similar views of aslightly 4:,drill hole 4' and glass tube 10 into the modified arrangement. collector12.

4 Fig. 6 is a section through a screw thread- It is evident that thearrangement just reed mouthpiece adapted to be screwed into a ferred topermits of the vacuum, or partial drill hole in the tooth. vacuum, beingmaintained without any pres- Fig. 7 is a section through a similardesure being applied to the afiected tooth, and vice havinga suctionplate of slightly modiwithout moderate movements of the patients 50 fiedform to the one shown in Fig. 8. head being able to disturb the airtightcon- Figs. 8 and 9 illustrate a modification of nection between theulceration and the col the screw-threaded mouth-piece and suctionlecting means. The dentist, therefor, need plate in sectional elevationand plan view not attend to the attachment in any way once respectively,whilst Fig. 8 shows the suction the same is applied but may have bothhis 55 plate in perspective view. hands free for other manipulations.

Figs. 10, 10 and 10 are similar views In the arrangement according toFigs. 2

ball socket joint 20.

and 3, the tooth to be treated is denominated 3, while 4 'lSgiil'lQtooth socket and ,4 thedrill hole as in the foregoing example. Thesuction conduit comprises the india rubber tube 8 with its inserted coilspring,.andcommunication between this tube and the tooth socket isestablished -by means of a screw threaded mouth piece 17, preferablymade of iron and arranged to be screwed up and down within the yoke orstirrup 19, which, for this purpose, is provided with a correspondingscrew thread at its centre. At its lower end the said mouthpieceterminates into a loose section of suction tube 21, attached to themouth piece 17 by means of a The purpose of this loose piece of tubingis to enable a better insertion of the appliance into the hole 4 made bythe dentist. V

In order to provide an airtight joint with the tooth, the tube 21 isprovided with a fiat suction pad 22 made of'india rubber or the likematerial, and which pressed tightly upon the tooth when the mouth piece17 is screwed down in the stirrup 19 Fixing .the stirrup upon the crownof the tooth is etfected by means of clips without the tooth beingpressed thereby in the direction of its root. The said clips are pivotedtothe stirrup at 23 and are 'aoapted, with their jaws 24, to bearsideways upon the tooth by means of the set screws 28 having preferablymilled heads 27, The stirrupll), in this way, forms a support for themouthpiece 17 While the latter being pressed onto the tooth; thepressure being directly taken up by the jaws 2st; it is not transmittedto the root of thetooth or to the pa-tients jaw.

The modification shown in Figs. 4- and 5 (litters from the aforesaidonly in that the firing jaws are provided with pads 23 for the" purposeo1 preventing the tooth being clamped by the metallic parts of theappliance.

Inthe modifications shown in Figs. 6 to 10 the mouthpiece 21 is formedas a screw threaded tube adapted to be screwed directly into the hole a,ot' the to th, the thread serving at the same time for the wing nut 31arranged to press the suct1on pad 22 against the tbbil In Fig. 6 thesaid pad Shown to form one piece with the Wing nut, while in Fig. 7these members are shown to be weete- According to Figs. 8, 9 and 8 theapplication of the mouthpiece 21 is again effected by directly screwinginto the dental canal of the tooth 3. While the suction pad 22, in thiscase, is of a shape particularly adapted for use upon molar teeth,packing being carried out by a special pad -82'directly attached to thewing nut 31, {Quite a similar arrangement is the one shown in Figs. 10,10 and 10 the only difference being in the shapeot the suction pad 22.

W hat I claim is 1. In a dental appliance for removing secretions fromdental canals. by suction through the drilled crown of the tooth, inCombination a suction conduit and means to create avacuum within saidsuction .con duit, a mouthpiece in Connection with said suction conduitand in airtight communication with the drill hole said tooth, and aclamp to guide the said mouthpiece and comprising pivotal jaws adaptedto bear with lateral pressure npon [the crown.

In dental appliance for removing secretions from dental canals bysuction, through the drilled crown of the tooth, in combination asuction conduit and means to create a vacuum With-in said suctionconduit, an externally thneaded mouthpiece, a stirrup in which the saidn ontl-ipiece may be screwed up and down, a tubular extension to themouthpiece turnalole in an airtight ball socket joint at the end ofsame, a suction plate of packing material on said extension, hingedfixing jaws on the said t rer, and S w to fi t jaws a d h stirrup to thecrown of the tooth by the app a ion o lat ra P es ma- 3. In a dentalappliance for removing secretions from dental canals by suction throughthe drilled crown of the tooth, in combination a suction conduit andmeans to create a vacuum with-in said suction conduit, a mouthpiece inconnection with the said suction conduit and in airtight communicationwith the drill hole in the tooth, a clamp to guide the said mouthpiece,pivotal jaws pivoted to the said clamp, means to exert lateral pressureto the said jaws, and resilient pads on the jaws for contact with thecrown of the tooth,

In witness whereof i atiix my signature.

ROBERT FUST.

